초록 ▼

Composite polyisocyanate addition products are formed from (1) the reaction product of a compound having at least two isocyanate-reactive hydrogen atoms and a molecular weight of from 400 to 10,000, a polyisocyanate and a catalyst which is a diffusion stable amino alkyl urea having tertiary amino gr

Composite polyisocyanate addition products are formed from (1) the reaction product of a compound having at least two isocyanate-reactive hydrogen atoms and a molecular weight of from 400 to 10,000, a polyisocyanate and a catalyst which is a diffusion stable amino alkyl urea having tertiary amino groups and corresponds to the formula [Figure] in which R1, R2, R3, R4, R5, R6, R7 and n each represent specified groups or values and (2) another different material such as polyvinyl chloride, ABS, lacquers and textiles. Known additives such as blowing agents, chain extenders and foam stabilizers may optionally be used in the production of reaction product (1). The composite materials of the present invention which are particularly useful in the production of bedding and seating furniture, seats used in transport means, dashboard panels, arm-rests and for other similar applications are characterized by their lack of discoloration due to the diffusion of the catalyst employed in producing reaction product (1).

대표청구항 ▼

A process for the production of a composite polyisocyanate addition product in which a compound having at least two isocyanate-reactive hydrogen atoms and a molecular weight of from 400 to 10,000 is reacted with a polyisocyanate in the presence of a catalyst which is a diffusion stable amino alkyl u

A process for the production of a composite polyisocyanate addition product in which a compound having at least two isocyanate-reactive hydrogen atoms and a molecular weight of from 400 to 10,000 is reacted with a polyisocyanate in the presence of a catalyst which is a diffusion stable amino alkyl urea having tertiary amino groups and corresponds to the formula [Figure] in which R1 represents hydrogen, R2 and R3 each represent hydrogen or a C1-C6 alkyl group, R4 and R5 each represent a C1-C6 alkyl group or together represent a C2-C6 alkylene group which may contain heteroatoms or the group NR in which R represents an alkyl group or the group [Figure] R6 and R7 each represent hydrogen and n represents an integer from 2 to 6, to form a polyisocyanate addition product which addition product is combined with, coated with or applied to another different material.